It's called transference.
Transference is a common phenomenon in therapy. It happens when a patient unconsciously projects feelings, thoughts, and behaviors from their past onto their therapist. This can include positive feelings, such as admiration or affection, which can manifest as a crush.
It's important to remember that transference is not about the therapist as a person. It's about the patient's own past experiences and unresolved issues. The therapist is simply a figure who triggers these feelings.
If you find yourself developing feelings for your therapist, it's important to talk to them about it. They can help you understand what's happening and work through these feelings in a healthy way.
Transference can be a powerful force in therapy, but it can also be confusing and even distressing. With the help of your therapist, you can learn to manage these feelings and use them to your advantage in therapy.